[PATCH v4 0/6] hw/ppc: Remove tswap() calls

[PATCH v4 0/6] hw/ppc: Remove tswap() calls

[Philippe Mathieu-Daudé]

Since v3:
- Addressed Nick & Harsh  review comments

Remove the tswap() calls on ePAPR, and convert
them to big-endian LD/ST API on sPAPR.

Build-tested only.

Philippe Mathieu-Daudé (6):
  hw/ppc/spapr: Convert HPTE() macro as hpte_get_ptr() method
  hw/ppc/spapr: Convert HPTE_VALID() macro as hpte_is_valid() method
  hw/ppc/spapr: Convert HPTE_DIRTY() macro as hpte_is_dirty() method
  hw/ppc/spapr: Convert CLEAN_HPTE() macro as hpte_set_clean() method
  hw/ppc/spapr: Convert DIRTY_HPTE() macro as hpte_set_dirty() method
  hw/ppc/epapr: Do not swap ePAPR magic value

 hw/ppc/sam460ex.c     |  2 +-
 hw/ppc/spapr.c        | 63 +++++++++++++++++++++++++++++--------------
 hw/ppc/virtex_ml507.c |  2 +-
 3 files changed, 45 insertions(+), 22 deletions(-)

-- 
2.47.1

[PATCH v4 1/6] hw/ppc/spapr: Convert HPTE() macro as hpte_get_ptr() method

[Philippe Mathieu-Daudé]

Convert HPTE() macro as hpte_get_ptr() method.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/ppc/spapr.c | 38 ++++++++++++++++++++++----------------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 3b022e8da9e..bed60afbe22 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1399,7 +1399,13 @@ static bool spapr_get_pate(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu,
     }
 }
 
-#define HPTE(_table, _i)   (void *)(((uint64_t *)(_table)) + ((_i) * 2))
+static uint64_t *hpte_get_ptr(SpaprMachineState *s, unsigned index)
+{
+    uint64_t *table = s->htab;
+
+    return &table[2 * index];
+}
+
 #define HPTE_VALID(_hpte)  (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID)
 #define HPTE_DIRTY(_hpte)  (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY)
 #define CLEAN_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
@@ -1614,7 +1620,7 @@ int spapr_reallocate_hpt(SpaprMachineState *spapr, int shift, Error **errp)
         spapr->htab_shift = shift;
 
         for (i = 0; i < size / HASH_PTE_SIZE_64; i++) {
-            DIRTY_HPTE(HPTE(spapr->htab, i));
+            DIRTY_HPTE(hpte_get_ptr(spapr, i));
         }
     }
     /* We're setting up a hash table, so that means we're not radix */
@@ -2172,7 +2178,7 @@ static void htab_save_chunk(QEMUFile *f, SpaprMachineState *spapr,
     qemu_put_be32(f, chunkstart);
     qemu_put_be16(f, n_valid);
     qemu_put_be16(f, n_invalid);
-    qemu_put_buffer(f, HPTE(spapr->htab, chunkstart),
+    qemu_put_buffer(f, (void *)hpte_get_ptr(spapr, chunkstart),
                     HASH_PTE_SIZE_64 * n_valid);
 }
 
@@ -2198,16 +2204,16 @@ static void htab_save_first_pass(QEMUFile *f, SpaprMachineState *spapr,
 
         /* Consume invalid HPTEs */
         while ((index < htabslots)
-               && !HPTE_VALID(HPTE(spapr->htab, index))) {
-            CLEAN_HPTE(HPTE(spapr->htab, index));
+               && !HPTE_VALID(hpte_get_ptr(spapr, index))) {
+            CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
         }
 
         /* Consume valid HPTEs */
         chunkstart = index;
         while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
-               && HPTE_VALID(HPTE(spapr->htab, index))) {
-            CLEAN_HPTE(HPTE(spapr->htab, index));
+               && HPTE_VALID(hpte_get_ptr(spapr, index))) {
+            CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
         }
 
@@ -2247,7 +2253,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
 
         /* Consume non-dirty HPTEs */
         while ((index < htabslots)
-               && !HPTE_DIRTY(HPTE(spapr->htab, index))) {
+               && !HPTE_DIRTY(hpte_get_ptr(spapr, index))) {
             index++;
             examined++;
         }
@@ -2255,9 +2261,9 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         chunkstart = index;
         /* Consume valid dirty HPTEs */
         while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
-               && HPTE_DIRTY(HPTE(spapr->htab, index))
-               && HPTE_VALID(HPTE(spapr->htab, index))) {
-            CLEAN_HPTE(HPTE(spapr->htab, index));
+               && HPTE_DIRTY(hpte_get_ptr(spapr, index))
+               && HPTE_VALID(hpte_get_ptr(spapr, index))) {
+            CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
             examined++;
         }
@@ -2265,9 +2271,9 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         invalidstart = index;
         /* Consume invalid dirty HPTEs */
         while ((index < htabslots) && (index - invalidstart < USHRT_MAX)
-               && HPTE_DIRTY(HPTE(spapr->htab, index))
-               && !HPTE_VALID(HPTE(spapr->htab, index))) {
-            CLEAN_HPTE(HPTE(spapr->htab, index));
+               && HPTE_DIRTY(hpte_get_ptr(spapr, index))
+               && !HPTE_VALID(hpte_get_ptr(spapr, index))) {
+            CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
             examined++;
         }
@@ -2449,11 +2455,11 @@ static int htab_load(QEMUFile *f, void *opaque, int version_id)
 
         if (spapr->htab) {
             if (n_valid) {
-                qemu_get_buffer(f, HPTE(spapr->htab, index),
+                qemu_get_buffer(f, (void *)hpte_get_ptr(spapr, index),
                                 HASH_PTE_SIZE_64 * n_valid);
             }
             if (n_invalid) {
-                memset(HPTE(spapr->htab, index + n_valid), 0,
+                memset(hpte_get_ptr(spapr, index + n_valid), 0,
                        HASH_PTE_SIZE_64 * n_invalid);
             }
         } else {
-- 
2.47.1

[PATCH v4 2/6] hw/ppc/spapr: Convert HPTE_VALID() macro as hpte_is_valid() method

[Philippe Mathieu-Daudé]

Convert HPTE_VALID() macro as hpte_is_valid() method.

sPAPR data structures including the hash page table are big-endian
regardless of current CPU endian mode, so use the big-endian LD/ST
API to access the hash PTEs.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
---
 hw/ppc/spapr.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index bed60afbe22..43220e93c4b 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1406,7 +1406,11 @@ static uint64_t *hpte_get_ptr(SpaprMachineState *s, unsigned index)
     return &table[2 * index];
 }
 
-#define HPTE_VALID(_hpte)  (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID)
+static bool hpte_is_valid(SpaprMachineState *s, unsigned index)
+{
+    return ldq_be_p(hpte_get_ptr(s, index)) & HPTE64_V_VALID;
+}
+
 #define HPTE_DIRTY(_hpte)  (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY)
 #define CLEAN_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
 #define DIRTY_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
@@ -2204,7 +2208,7 @@ static void htab_save_first_pass(QEMUFile *f, SpaprMachineState *spapr,
 
         /* Consume invalid HPTEs */
         while ((index < htabslots)
-               && !HPTE_VALID(hpte_get_ptr(spapr, index))) {
+               && !hpte_is_valid(spapr, index)) {
             CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
         }
@@ -2212,7 +2216,7 @@ static void htab_save_first_pass(QEMUFile *f, SpaprMachineState *spapr,
         /* Consume valid HPTEs */
         chunkstart = index;
         while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
-               && HPTE_VALID(hpte_get_ptr(spapr, index))) {
+               && hpte_is_valid(spapr, index)) {
             CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
         }
@@ -2262,7 +2266,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         /* Consume valid dirty HPTEs */
         while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
                && HPTE_DIRTY(hpte_get_ptr(spapr, index))
-               && HPTE_VALID(hpte_get_ptr(spapr, index))) {
+               && hpte_is_valid(spapr, index)) {
             CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
             examined++;
@@ -2272,7 +2276,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         /* Consume invalid dirty HPTEs */
         while ((index < htabslots) && (index - invalidstart < USHRT_MAX)
                && HPTE_DIRTY(hpte_get_ptr(spapr, index))
-               && !HPTE_VALID(hpte_get_ptr(spapr, index))) {
+               && !hpte_is_valid(spapr, index)) {
             CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
             examined++;
-- 
2.47.1

[PATCH v4 3/6] hw/ppc/spapr: Convert HPTE_DIRTY() macro as hpte_is_dirty() method

[Philippe Mathieu-Daudé]

Convert HPTE_DIRTY() macro as hpte_is_dirty() method.

sPAPR data structures including the hash page table are big-endian
regardless of current CPU endian mode, so use the big-endian LD/ST
API to access the hash PTEs.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/ppc/spapr.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 43220e93c4b..31df6fdc40c 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1411,7 +1411,11 @@ static bool hpte_is_valid(SpaprMachineState *s, unsigned index)
     return ldq_be_p(hpte_get_ptr(s, index)) & HPTE64_V_VALID;
 }
 
-#define HPTE_DIRTY(_hpte)  (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY)
+static bool hpte_is_dirty(SpaprMachineState *s, unsigned index)
+{
+    return ldq_be_p(hpte_get_ptr(s, index)) & HPTE64_V_HPTE_DIRTY;
+}
+
 #define CLEAN_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
 #define DIRTY_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
 
@@ -2257,7 +2261,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
 
         /* Consume non-dirty HPTEs */
         while ((index < htabslots)
-               && !HPTE_DIRTY(hpte_get_ptr(spapr, index))) {
+               && !hpte_is_dirty(spapr, index)) {
             index++;
             examined++;
         }
@@ -2265,7 +2269,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         chunkstart = index;
         /* Consume valid dirty HPTEs */
         while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
-               && HPTE_DIRTY(hpte_get_ptr(spapr, index))
+               && hpte_is_dirty(spapr, index)
                && hpte_is_valid(spapr, index)) {
             CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
@@ -2275,7 +2279,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         invalidstart = index;
         /* Consume invalid dirty HPTEs */
         while ((index < htabslots) && (index - invalidstart < USHRT_MAX)
-               && HPTE_DIRTY(hpte_get_ptr(spapr, index))
+               && hpte_is_dirty(spapr, index)
                && !hpte_is_valid(spapr, index)) {
             CLEAN_HPTE(hpte_get_ptr(spapr, index));
             index++;
-- 
2.47.1

[PATCH v4 4/6] hw/ppc/spapr: Convert CLEAN_HPTE() macro as hpte_set_clean() method

[Philippe Mathieu-Daudé]

Convert CLEAN_HPTE() macro as hpte_set_clean() method.

sPAPR data structures including the hash page table are big-endian
regardless of current CPU endian mode, so use the big-endian LD/ST
API to access the hash PTEs.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/ppc/spapr.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 31df6fdc40c..e68e8c320f4 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1416,7 +1416,12 @@ static bool hpte_is_dirty(SpaprMachineState *s, unsigned index)
     return ldq_be_p(hpte_get_ptr(s, index)) & HPTE64_V_HPTE_DIRTY;
 }
 
-#define CLEAN_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
+static void hpte_set_clean(SpaprMachineState *s, unsigned index)
+{
+    stq_be_p(hpte_get_ptr(s, index),
+             ldq_be_p(hpte_get_ptr(s, index)) & ~HPTE64_V_HPTE_DIRTY);
+}
+
 #define DIRTY_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
 
 /*
@@ -2213,7 +2218,7 @@ static void htab_save_first_pass(QEMUFile *f, SpaprMachineState *spapr,
         /* Consume invalid HPTEs */
         while ((index < htabslots)
                && !hpte_is_valid(spapr, index)) {
-            CLEAN_HPTE(hpte_get_ptr(spapr, index));
+            hpte_set_clean(spapr, index);
             index++;
         }
 
@@ -2221,7 +2226,7 @@ static void htab_save_first_pass(QEMUFile *f, SpaprMachineState *spapr,
         chunkstart = index;
         while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
                && hpte_is_valid(spapr, index)) {
-            CLEAN_HPTE(hpte_get_ptr(spapr, index));
+            hpte_set_clean(spapr, index);
             index++;
         }
 
@@ -2271,7 +2276,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         while ((index < htabslots) && (index - chunkstart < USHRT_MAX)
                && hpte_is_dirty(spapr, index)
                && hpte_is_valid(spapr, index)) {
-            CLEAN_HPTE(hpte_get_ptr(spapr, index));
+            hpte_set_clean(spapr, index);
             index++;
             examined++;
         }
@@ -2281,7 +2286,7 @@ static int htab_save_later_pass(QEMUFile *f, SpaprMachineState *spapr,
         while ((index < htabslots) && (index - invalidstart < USHRT_MAX)
                && hpte_is_dirty(spapr, index)
                && !hpte_is_valid(spapr, index)) {
-            CLEAN_HPTE(hpte_get_ptr(spapr, index));
+            hpte_set_clean(spapr, index);
             index++;
             examined++;
         }
-- 
2.47.1

[PATCH v4 5/6] hw/ppc/spapr: Convert DIRTY_HPTE() macro as hpte_set_dirty() method

[Philippe Mathieu-Daudé]

Convert DIRTY_HPTE() macro as hpte_set_dirty() method.

sPAPR data structures including the hash page table are big-endian
regardless of current CPU endian mode, so use the big-endian LD/ST
API to access the hash PTEs.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/ppc/spapr.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index e68e8c320f4..d318ce2a350 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1422,7 +1422,11 @@ static void hpte_set_clean(SpaprMachineState *s, unsigned index)
              ldq_be_p(hpte_get_ptr(s, index)) & ~HPTE64_V_HPTE_DIRTY);
 }
 
-#define DIRTY_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
+static void hpte_set_dirty(SpaprMachineState *s, unsigned index)
+{
+    stq_be_p(hpte_get_ptr(s, index),
+             ldq_be_p(hpte_get_ptr(s, index)) | HPTE64_V_HPTE_DIRTY);
+}
 
 /*
  * Get the fd to access the kernel htab, re-opening it if necessary
@@ -1633,7 +1637,7 @@ int spapr_reallocate_hpt(SpaprMachineState *spapr, int shift, Error **errp)
         spapr->htab_shift = shift;
 
         for (i = 0; i < size / HASH_PTE_SIZE_64; i++) {
-            DIRTY_HPTE(hpte_get_ptr(spapr, i));
+            hpte_set_dirty(spapr, i);
         }
     }
     /* We're setting up a hash table, so that means we're not radix */
-- 
2.47.1

[PATCH v4 6/6] hw/ppc/epapr: Do not swap ePAPR magic value

[Philippe Mathieu-Daudé]

The ePAPR magic value in $r6 doesn't need to be byte swapped.

See ePAPR-v1.1.pdf chapter 5.4.1 "Boot CPU Initial Register State"
and the following mailing-list threads:
https://lore.kernel.org/qemu-devel/CAFEAcA_NR4XW5DNL4nq7vnH4XRH5UWbhQCxuLyKqYk6_FCBrAA@mail.gmail.com/
https://lore.kernel.org/qemu-devel/D6F93NM6OW2L.2FDO88L38PABR@gmail.com/

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
---
 hw/ppc/sam460ex.c     | 2 +-
 hw/ppc/virtex_ml507.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index 78e2a46e753..db9c8f3fa6e 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -234,7 +234,7 @@ static void main_cpu_reset(void *opaque)
 
         /* Create a mapping for the kernel.  */
         booke_set_tlb(&env->tlb.tlbe[0], 0, 0, 1 << 31);
-        env->gpr[6] = tswap32(EPAPR_MAGIC);
+        env->gpr[6] = EPAPR_MAGIC;
         env->gpr[7] = (16 * MiB) - 8; /* bi->ima_size; */
 
     } else {
diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index f378e5c4a90..6197d31d88f 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -119,7 +119,7 @@ static void main_cpu_reset(void *opaque)
     /* Create a mapping spanning the 32bit addr space. */
     booke_set_tlb(&env->tlb.tlbe[0], 0, 0, 1U << 31);
     booke_set_tlb(&env->tlb.tlbe[1], 0x80000000, 0x80000000, 1U << 31);
-    env->gpr[6] = tswap32(EPAPR_MAGIC);
+    env->gpr[6] = EPAPR_MAGIC;
     env->gpr[7] = bi->ima_size;
 }
 
-- 
2.47.1

Re: [PATCH v4 6/6] hw/ppc/epapr: Do not swap ePAPR magic value

[BALATON Zoltan]

[-- Attachment #1: Type: text/plain, Size: 1765 bytes --]

On Fri, 20 Dec 2024, Philippe Mathieu-Daudé wrote:
> The ePAPR magic value in $r6 doesn't need to be byte swapped.
>
> See ePAPR-v1.1.pdf chapter 5.4.1 "Boot CPU Initial Register State"
> and the following mailing-list threads:
> https://lore.kernel.org/qemu-devel/CAFEAcA_NR4XW5DNL4nq7vnH4XRH5UWbhQCxuLyKqYk6_FCBrAA@mail.gmail.com/
> https://lore.kernel.org/qemu-devel/D6F93NM6OW2L.2FDO88L38PABR@gmail.com/
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Reviewed-by: Nicholas Piggin <npiggin@gmail.com>

The Linux image I have still seems to boot on sam460ex so

Tested-by: BALATON Zoltan <balaton@eik.bme.hu>

> ---
> hw/ppc/sam460ex.c     | 2 +-
> hw/ppc/virtex_ml507.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
> index 78e2a46e753..db9c8f3fa6e 100644
> --- a/hw/ppc/sam460ex.c
> +++ b/hw/ppc/sam460ex.c
> @@ -234,7 +234,7 @@ static void main_cpu_reset(void *opaque)
>
>         /* Create a mapping for the kernel.  */
>         booke_set_tlb(&env->tlb.tlbe[0], 0, 0, 1 << 31);
> -        env->gpr[6] = tswap32(EPAPR_MAGIC);
> +        env->gpr[6] = EPAPR_MAGIC;
>         env->gpr[7] = (16 * MiB) - 8; /* bi->ima_size; */
>
>     } else {
> diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
> index f378e5c4a90..6197d31d88f 100644
> --- a/hw/ppc/virtex_ml507.c
> +++ b/hw/ppc/virtex_ml507.c
> @@ -119,7 +119,7 @@ static void main_cpu_reset(void *opaque)
>     /* Create a mapping spanning the 32bit addr space. */
>     booke_set_tlb(&env->tlb.tlbe[0], 0, 0, 1U << 31);
>     booke_set_tlb(&env->tlb.tlbe[1], 0x80000000, 0x80000000, 1U << 31);
> -    env->gpr[6] = tswap32(EPAPR_MAGIC);
> +    env->gpr[6] = EPAPR_MAGIC;
>     env->gpr[7] = bi->ima_size;
> }
>
>

Re: [PATCH v4 0/6] hw/ppc: Remove tswap() calls

[Harsh Prateek Bora]

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On Sat, 21 Dec, 2024, 3:02 am Philippe Mathieu-Daudé, <philmd@linaro.org>
wrote:

> Since v3:
> - Addressed Nick & Harsh  review comments
>
> Remove the tswap() calls on ePAPR, and convert
> them to big-endian LD/ST API on sPAPR.
>
> Build-tested only.
>
> Philippe Mathieu-Daudé (6):
>   hw/ppc/spapr: Convert HPTE() macro as hpte_get_ptr() method
>   hw/ppc/spapr: Convert HPTE_VALID() macro as hpte_is_valid() method
>   hw/ppc/spapr: Convert HPTE_DIRTY() macro as hpte_is_dirty() method
>   hw/ppc/spapr: Convert CLEAN_HPTE() macro as hpte_set_clean() method
>   hw/ppc/spapr: Convert DIRTY_HPTE() macro as hpte_set_dirty() method
>   hw/ppc/epapr: Do not swap ePAPR magic value
>

For spapr:
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>


>  hw/ppc/sam460ex.c     |  2 +-
>  hw/ppc/spapr.c        | 63 +++++++++++++++++++++++++++++--------------
>  hw/ppc/virtex_ml507.c |  2 +-
>  3 files changed, 45 insertions(+), 22 deletions(-)
>
> --
> 2.47.1
>
>
>

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Re: [PATCH v4 0/6] hw/ppc: Remove tswap() calls

[Philippe Mathieu-Daudé]

Hi Nick,

Ping? (series fully reviewed)

On 20/12/24 22:30, Philippe Mathieu-Daudé wrote:
> Since v3:
> - Addressed Nick & Harsh  review comments
> 
> Remove the tswap() calls on ePAPR, and convert
> them to big-endian LD/ST API on sPAPR.

Re: [PATCH v4 0/6] hw/ppc: Remove tswap() calls

[Philippe Mathieu-Daudé]

ping

On 9/1/25 13:54, Philippe Mathieu-Daudé wrote:
> Hi Nick,
> 
> Ping? (series fully reviewed)
> 
> On 20/12/24 22:30, Philippe Mathieu-Daudé wrote:
>> Since v3:
>> - Addressed Nick & Harsh  review comments
>>
>> Remove the tswap() calls on ePAPR, and convert
>> them to big-endian LD/ST API on sPAPR.

Re: [PATCH v4 0/6] hw/ppc: Remove tswap() calls

[Philippe Mathieu-Daudé]

On 6/3/25 16:23, Philippe Mathieu-Daudé wrote:
> ping

Merged as c894bdf78b3..c2ac9f4c297, thanks!

>>> Remove the tswap() calls on ePAPR, and convert
>>> them to big-endian LD/ST API on sPAPR.